Apparatus Medic / Supervisor 1 Year : 2007 Model : Ford Explorer This unit is used as a supervisor vehicle, and as an ALS chase vehicle. MICU 1-1 Year : 2012 Model : F550 LifeLine MICU 1-2 Year : 2010 Model : Marque Ford E450 MICU 1-3 Year : 2015 Model : F550 LifeLine